Rock bolt and installation system

Details Rock bolt and installation system Rock bolt and installation system

1979-06-21

1981-07-14

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405259, E21D 2002

Patent

active

042783631

ABSTRACT:
A rock bolt installation system including a device for applying an insertion force to a rock bolt and a device for supplying high pressure jetting fluid through the rock bolt, and a method of operating the system to rapidly install rock bolts. The rock bolt itself includes a flow passage with a restricted nozzle outlet at one end and an exterior groove for removal of jetting fluid and formation cuttings.

REFERENCES:
patent: 2129978 (1938-09-01), Yokoyama
patent: 3074240 (1963-01-01), Elliott
patent: 3494133 (1970-02-01), Ahlgren et al.
patent: 3608317 (1971-09-01), Landau
patent: 3842608 (1974-10-01), Turzillo
patent: 3899893 (1975-08-01), Banerjee et al.

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